/*
 * Copyright (c) 2001-2003 Swedish Institute of Computer Science.
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without modification,
 * are permitted provided that the following conditions are met:
 *
 * 1. Redistributions of source code must retain the above copyright notice,
 *    this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright notice,
 *    this list of conditions and the following disclaimer in the documentation
 *    and/or other materials provided with the distribution.
 * 3. The name of the author may not be used to endorse or promote products
 *    derived from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
 * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
 * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
 * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
 * OF SUCH DAMAGE.
 *
 * This file is part of the lwIP TCP/IP stack.
 *
 * Author: Adam Dunkels <adam@sics.se>
 *
 */
#ifndef __ARCH_SYS_ARCH_H__
#define __ARCH_SYS_ARCH_H__

#include "arch/cc.h"
#include "ucos_ii.h"

/*
 *********************************************************************************************************
 *                                            TASK PRIORITIES
 *********************************************************************************************************
 */
#define  LWIP_TASK_START_PRIO                             16
#define  LWIP_TASK_END_PRIO                               24
#define  OS_TASK_TMR_PRIO                (OS_LOWEST_PRIO - 2)


#ifdef SYS_ARCH_GLOBALS
#define SYS_ARCH_EXT
#else
#define SYS_ARCH_EXT extern
#endif

/*-----------------macros-----------------------------------------------------*/
#define LWIP_STK_SIZE     128

#define LWIP_TASK_MAX     (LWIP_TASK_END_PRIO - LWIP_TASK_START_PRIO + 1)
#define LWIP_START_PRIO   LWIP_TASK_START_PRIO //first prio of lwip tasks in uC/OS-II

#define MAX_QUEUES        20                   // the number of mailboxes
#define MAX_QUEUE_ENTRIES 20                   // the max size of each mailbox

#define SYS_MBOX_NULL (void*)0
#define SYS_SEM_NULL  (void*)0

#define sys_arch_mbox_tryfetch(mbox, msg) \
    sys_arch_mbox_fetch(mbox, msg, 1)

/*-----------------type define------------------------------------------------*/

/** struct of LwIP mailbox */
typedef struct
{
    OS_EVENT*   pQ;
    void*       pvQEntries[MAX_QUEUE_ENTRIES];
} TQ_DESCR, *PQ_DESCR;


typedef OS_EVENT *sys_sem_t; // type of semiphores
typedef PQ_DESCR sys_mbox_t; // type of mailboxes
typedef INT8U sys_thread_t;  // type of id of the new thread
typedef INT8U sys_prot_t;

#endif /* __SYS_RTXC_H__ */

